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Finding the Fourth Proportional to 247,068.56, 340,991.19 and 156,432.96

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Solution

The fourth proportional to 247,068.56, 340,991.19 and 156,432.96 is: 215,900.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,068.56 : 340,991.19 = 156,432.96 : x
  2. Step 2: Convert to fraction form
    247,068.56/340,991.19 = 156,432.96/x
  3. Step 3: Cross multiply
    247,068.56x = 340,991.19 × 156,432.96
  4. Step 4: Simplify right side
    247,068.56x = 53,342,261,185.62
  5. Step 5: Solve for x
    x = 53,342,261,185.62/247,068.56
  6. Step 6: Final answer
    x = 215,900.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.